髪の毛を

hair

→ 髪
phrase Uncommon #16,621
hair 髪の毛 means “hair,” and を marks it as the object of the verb. This phrase is usually followed by a verb, such as 拭く (to wipe) or 切る (to cut).
JA: 髪の毛を毎朝とかします。
EN: I comb my hair every morning.

髪の毛を洗っていない

I haven't washed my hair.

トムメアリー髪の毛を引っ張っている

Tom is pulling Mary's hair.

髪の毛を振って

Shake your hair.

— 預言者 (2009)

ぬれた髪の毛をタオル拭いた

I dried my wet hair with a towel.

彼は髪の毛を長くしている

He wears his hair long.